Volume 21, Number 2, 165-168, DOI: 10.1007/s004490050657

Production of ethanol by raw starch hydrolysis and fermentation of damaged grains of wheat and sorghum

K. Suresh, N. Kiransree and L. Venkateswar Rao

View Related Documents

Abstract

The simultaneous saccharification and fermentation was used to produce ethanol from raw starch of damaged quality wheat and sorghum grains by utilising crude amylase preparation from B. subtilis VB2 and an amylolytic yeast strain S. cerevisiae VSJ4. Various concentrations of damaged wheat and sorghum starch from 10% to 30%W/V were used and 25% was found to be optimum for damaged wheat and sorghum starch yielding 4.40%V/V and 3.50%V/V ethanol respectively. Whereas 25% raw starch of fine quality wheat and sorghum grains gave an yield of 5.60%V/V and 5.00%V/V respectively. The process was carried out at 35v°C, 5.8 pH and 200 rpm for 4 days.

Fulltext Preview

Image of the first page of the fulltext document